Lateral digital extensor muscle
Musculus extensor digitorum lateralis
Extends the digit and the carpus or tarsus.
- System
- Muscle
- Region
- Thoracic limb
- Sides
- Paired: left and right

Where it runs from and to
A muscle is told apart from its neighbours by what it takes hold of at each end, which is also what decides what it does when it shortens.
- Origin
- In the forelimb, the elbow's outer collateral ligament and the outer radius and ulna; in the hind limb, the stifle's outer collateral ligament and the fibula.
- Insertion
- Front of the proximal phalanx in the forelimb; in the hind limb its tendon joins that of the long digital extensor on the cannon.
- Action
- Extends the digit and the carpus or tarsus.
- Nerve
- Radial nerve in the forelimb; fibular nerve in the hind limb.
Written for Vetomica in its own words from the standard reference anatomy of the horse; the books it was checked against are listed below.
Terminology
- English
- Lateral digital extensor muscle
- Latin (NAV)
- Musculus extensor digitorum lateralis
- Status
- A valid term in the Nomina Anatomica Veterinaria
Read next
- Accessory carpal boneSame region
- Brachial muscleSame region
- Common digital extensor muscleSame region
- Deep pectoral muscleSame region
- Fourth carpal boneSame region
- HumerusSame region
- Intermedium carpal boneSame region
- Lateral head of the triceps muscle of the armSame region
- Os metacarpale IISame region
- Os metacarpale IVSame region
- Radial extensor muscle of the carpusSame region
- RadiusSame region